First, when you make enough sales face-to-face, hire someone to manage social media for you. You don't have to do it like everyone else, but you need to have a presence online to be a serious contender in the marketplace. Even people who meet you face-to-face may be less enthusiastic about buying from you (or even suspicious) if they can't find much about you online.
Here are some of the more successful approaches I've used to increase "face time" with clients and prospects:
1. Book speaking engagements and speak on subject matters where my expertise can shine through. Chambers of commerce, civic organizations, trade associations, etc.
2. Join a meet-up group or, better yet, start your own. Figure out what kind of networking your prospective clients want to do and give them an opportunity to do it. You'll create value for them and fill your Rolodex with leads.
3. Join a chamber of commerce, networking organization, or trade association and (emphasis here) take a leadership role. Chair a committee. Run an event. Organizations like these have hundreds or thousands of members. Only a percent show up. A smaller percent actually gets a lot of business from it. Which small percent? The ones who take an active, visible leadership role.
I'm sure we could come up with a lot more if we could talk specifically about your business and industry. Please set up a phone call if you want to brainstorm.